The fpversion utility distributed with the compilers identifies the installed CPU and estimates the processor and system bus clock speeds. fpversion determines the CPU and FPU types by interpreting the identification information stored by the CPU and FPU. It estimates their clock speeds by timing a loop that executes simple instructions that run in a predictable amount of time. The loop is executed many times to increase the accuracy of the timing measurements. For this reason, fpversion is not instantaneous. It can take several seconds to run.
fpversion also reports the best –xtarget code generation option to use for the host system.
On a T4-2 server, fpversion displays information similar to the following. There might be variations due to differences in timing or machine configuration.
demo% fpversion A SPARC-based CPU is available. Kernel says CPU's clock rate is 1500.0 MHz. Kernel says main memory's clock rate is 150.0 MHz. Sun-4 floating-point controller version 0 found. An UltraSPARC chip is available. Use "-xtarget=T4 -xcache=16/32/4/8:128/32/8/8:4096/64/16/64" code-generation option. Hostid = hardware_host_id
See the fpversion(1) manual page for more information.